- SAC
single-attached concentrator
- SACK
selective acknowledgement
- SAS
single-attached station
- SBus
(n.) A 32-bit self-identifying bus used mainly on SPARCTM workstations, the SBus provides information to the system so that it can identify the device driver that needs to be used. An SBus device might need to use hardware configuration files to augment the information provided by the SBus card. See also PCI bus.
- SBus bridge
(n.) A device providing additional SBus slots by connecting two SBuses. Generally, a bus bridge is functionally transparent to devices on the SBus. However, there are cases (for example, bus sizing) in which bus bridges can change the exact way a series of bus cycles is performed. Also called an SBus coupler.
- SBus controller
(n.) The hardware responsible for performing arbitration, addressing translation and decoding, driving slave selects and address strobe, and generating timeouts.
- SBus device
(n.) A logical device attached to the SBus. This device might be on the motherboard or on an SBus expansion card.
- SBus expansion card
(n.) A physical printed circuit assembly that conforms to the single-or double-width mechanical specifications and that contains one or more SBus devices.
- SBus expansion slot
(n.) An SBus slot into which you can install an SBus expansion card.
- SBus ID
(n.) A special series of bytes at address 0 of each SBus slave that identifies the SBus device.
- SDP
Sockets Direct Protocol
- Security SSL
(Secure Sockets Layer) A protocol developed for transmitting private documents via the Internet. SSL works by using a public key to encrypt data that's transferred over the SSL connection.
- Services on Demand
Ability to provide information, data, and applications to anyone, anytime, anywhere on any device. Includes Web services technology, but also includes technology you are using today and could use in the future.
- SFM
Switch Fabric Module
- SLA
Service Level Agreement
- SLB
server load balancing
- Sliding window
A TCP flow control protocol that allows the sender to transmit multiple packets before it stops and waits for an acknowledgment.
- SMLT
Split Multilink Trunking
- SNA
Systems Network Architecture
- SOHO
Small Office/Home Office
- Solaris Operating System
The Sun Microsystems open standards-based UNIX operating system. The Solaris Operating System, the foundation for Sun™ ONE software architecture, delivers the security, manageability, and performance.
- SPOF
single point of failure
- SQF
Smallest Queue First
- SRAM
static random access memory
- STP
Spanning Tree Protocol
- Stream
(n.) A kernel aggregate created by connecting STREAMS components, resulting from an application of the STREAMS mechanism. The primary components are the Stream head, the driver, and zero or more pushable modules between the Stream head and driver.
- Stream end
(n.) A Stream component that is farthest from the user process and contains a driver.
- Stream head
(n.) A Stream component closest to the user process. It provides the interface between the Stream and the user process.
- Streaming server
Handles data streams from the Sun ONE Application Server to the Web server and to the Web browser. A streaming service improves performance by allowing users to begin viewing results of requests sooner rather than waiting until the complete operation has been processed.
- STREAMS
(n.) A kernel mechanism that supports development of network services and data communications drivers. STREAMS defines interface standards for character input/output within the kernel and between the kernel and user level. The STREAMS mechanism includes integral functions, utility routines, kernel facilities, and a set of structures.
- STREAMS-based pipe
(n.) A mechanism for bidirectional data transfer implemented using STREAMS and sharing properties of STREAMS-based devices.
- Sun ONE
(Sun Open Net Environment) The Sun Microsystems software strategy that comprises the vision, architecture, platform, and expertise for developing and deploying Services on Demand today. See http://www.sun.com/sunone.
- Switch
Any device or mechanism that moves data from one network to another without any routing tables.
- SYN
synchronization
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